12121012330023 has 4 divisors (see below), whose sum is σ = 16161349773368. Its totient is φ = 8080674886680.

The previous prime is 12121012330019. The next prime is 12121012330069. The reversal of 12121012330023 is 32003321012121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12121012330023 - 2² = 12121012330019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121012330073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2020168721668 + ... + 2020168721673.

It is an arithmetic number, because the mean of its divisors is an integer number (4040337443342).

Almost surely, 2^{12121012330023} is an apocalyptic number.

12121012330023 is a deficient number, since it is larger than the sum of its proper divisors (4040337443345).

12121012330023 is an equidigital number, since it uses as much as digits as its factorization.

12121012330023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040337443344.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12121012330023 its reverse (32003321012121), we get a palindrome (44124333342144).

The spelling of 12121012330023 in words is "twelve trillion, one hundred twenty-one billion, twelve million, three hundred thirty thousand, twenty-three".